The proven strength and performance characteristics of precast concrete box culverts, together with their excellent service life, make them ideal for a wide variety of Civil Engineering and construction applications.
Box culvert sections can be manufactured in a variety of internal profiles and sizes, offering exceptional versatility in the uses to which they can be applied.
In addition to the more common use for diverting water courses, box culverts have been used in an array of applications including balancing tanks, pedestrian subways, access shafts, service tunnels, sea outfalls, road crossings and many other situations where the whole life costing consideration requires strength, durability and economy to be of paramount importance.
Unlike other materials such as steel, precast concrete box culverts do not require additional treatments to prolong their life or improve performance. The concrete surface will not rust and the smooth internal finish of the box culvert ensures optimum flow of water through the concrete structure.
Precast concrete box culverts fulfill the current design life requirements for buried structures. With minimum maintenance and the ability to provide many years of service, precast concrete box culverts are the most cost-effective means of diverting water courses, especially with the ever present risk of corrosive elements in the water or soil.
Structural strength and long life performance
Durable system meeting the design life requirements for buried structures. Minimum maintenance required.
Ease of installation
Can be easily positioned in shallow or deep fill installations.
Flexible sizes and internal features
Can be manufactured in a range of sizes and accommodate features such as dry weather flow channels, mammal ledges and dual cell configuration units, plus tapered and skewed units if required.
Additional Features
End walls, access points, vent holes, inlets, outlets, rungs, angles and splayed ends can all be added to any run of culvert. Starter bars and sockets can be added to facilitate any additional casting on site which may be required as part of the finished work.
Box Culvert Applications:
- Attenuation and storage tanks
- Water course diversion
- Open channels
- Road crossings
- Pedestrian and vehicle subways
- Shafts
- Service tunnels and ducts
- Conveyor protection
Typical Culvert
Units are available in internal span sizes from 1000mm to 6000mm and internal heights from 500mm to 3600mm, with unit lengths to a maximum of 2000mm dependent on final mould configuration.
Mammal Ledges
Cast in mammal ledges allow access through the culvert to wildlife without the requirement for extra site provisions.
Channels
Half round (or equivalent) channels can be cast into the floor of the units at any position with a choice of equivalent half round diameters.
Dual Cell
Used to facilitate separate water passage through the structure.
Benching
Combined with either a channel or cast as a “vee” benching improves self cleansing flow rates.
Specials
Bespoke units accommodating a variety of features can be manufactured to the customers design requirements.
